Adjustable foot-rest



No. 6|9,07|. Patented Feb. 7, |899. T. B. CRIDDLE.

ADJUSTABLE FOOT REST.

(Application led June S0, 1897.)

(No Model.)

HIIIMIIIIIIIIIIIII "IEW Y UNITED I STATES PATENT OFFICE.

THOMAS B. ORIDDLE, OF VAXAHAOI-IIE, TEXAS.

ADJUSTABLE FOOT-REST.

SPECIFICATION forming part of Letters Patent No. 619,071, dated February7, 1899.

Application filed June 30, 1897- Serial No. 642,967. (No model.)

To all whom it may concern:

Be it known that I, THOMAS B. CEIDDLE, residing at Waxahachie, in thevcounty of Ellis and State of Texas, have invented a new and usefulAdjustable Foot-Rest, of which the following is a specification.

This invention relates to improvements in adjustable foot-rests fordesks, chairs, railway-seats, and any other objects to which applicable,and has for its object to provide a convenient device which may beapplied to existing desks, chairs, &c., or which may be provided uponthe desks, seats, or chairs in process of manufacture.

My improved device is simple, cheap, and as durable as any other portionof the desk and not at all likely to get out of order.

My improved adjustable foot-rest is especially adaptable toschool-desks, so that the rests maybe raised in order to suit the smallpupils. The adjustment may be readily effected by any person or child ofordinary intelligence.

A further object of my invention is to provide in the rest a lateraladjustment, so that it may be applied to desks of variable widths.

In the drawings herewith, in which similar parts are indicated by likeletters of reference, Figure lis a perspective view of a school-deskiitted with one form of my improved adjustable rest. Fig. 2 is acentralvertical section of the mechanism employed to secure the rest to thestandards of the desk and for the vertical adjustment of the rest. Fig.3 is a cross-sectional View in detail of the adjusting mechanism. Fig.4t is a vertical sectional view of a modified form of my improveddevice. Fig. 5 is a bottom plan view of the construction employed inFig. 4. Fig. 6 comprises two detail views in perspective, showing meansemployed for the lateral adjustment of a foot-rest hereinafter fullyexplained. Fig. 7 shows inside elevation a further means of adjustmenthereinafter fully described.

In the drawings herewith my improved mechanism is shown as applied to aschooldesk of the ordinary pattern; but, as stated, it is by no meansconfined to such application.

Upon the vertical portion of each standard A, preferably those adjacentto the rear wall of the desk, I secure a vertical plate B, its

vertical edges turned inwardly, so as to form right-angled flanges B',the edges of such flanges being further bent inwardly,as shown, so as toform a retaining sliding way for the ends of the foot-rest C,hereinafter described. Said slideways may be secured to the standards inany suitable manner by bolts B2 or may be cast upon the standards inprocess of manufacture. Extending through the plates B, I provide aplurality of apertures B3 in vertical alinement with each other in thecenter of said plate. I next provide the foot-rest C, which may be ofwood or metal and of any desired form in cross-section. The ends of saidportion C are preferably rounded, as shown, and secured in a suitablemanner to vertical sliding plates C', adapted to rest within and havevertical play in the slideways between the anges B' on plate B. The saidslideways are closed at their lower ends to prevent the droppingtherefrom of the sliding plates C'. .i

In the under surface of the foot-rest C, adjacent to the rounded portionof each end thereof, I providea rectangular recess E, and extendingthrough the plate C and the rounded portion of the rest and opening intothe recess E and extended somewhat beyond the inner end of same Iprovide a longitudinal aperture E, preferably circular, as shown. Withinsaid aperture I provide a plunger-dog D, provided with a depending lugor finger D for operating the same. The said plungerdog D is impelledoutwardly by means of a spiral spring E2, encircling said plunger withinsaid recess E. The outer end of said dog is adapted to be engaged by anyof the apertures B3 when registering therewith by means of the upward ordownward movement of the plate O.

In Fig. 4 I have shown a modified form of construction. Instead ofproviding the flanged slideway I substitute therefor a vertical rackplate or bar F, provided with a plurality of square-cut horizontal slotsF'. The ends C2 of the rest C are so constructed as to encircle said baror plate F and to slidevertically thereon. Upon the under surface of therest C, I provide a locking-dog plate I-I, adapted to be engaged byeither of said slots F' when registering therewith, said locking IOOplates or dogs being slidably retained in a frame consisting oflongitudinal strips II and transverse plate H2, the strips secured uponthe rest C and the plate upon said strips. The said dog-plate isoutwardly impelled by means of spiral spring E2, said spring beingcontracted and the dog drawn inwardly out of its engagement with theslots F by means of a rod G, secured to said dog and formed into an eyeG after passing through a keeper G2, against which keeper the inner endof said spring abuts. The outer end of the spring bears against an eyeor a disk G3 formed upon said rod G.

In Fig. 6 I have shown the mechanism employed for adjusting laterallythe foot-rest C to desks, chairs, seats, benches, dac., of Variablewidths or lengths. This I effect by constructing the rest in two parts,having the meeting en ds formed as shown, one end M being provided Withadovetail slot M and the other end with a tongue N, adapted to restslidably with said slot M' and provided upon its upper and lowersurfaces with transverse retaining-strips N'.

In lieu of the construction shown I may employ dovetailmortise-and-tenon ends or simply socket the end of one portion withinthe other. I may in any other manner modify the construction of mydevice so as to afford both vertical and lateral adjustment for thefoot-rest, which are the primary objects of my invention.

In Fig. 7 I have shown a further means of adjustment consisting of aperforated bar or plate O, pivotally secured to the standard at itslower end and in a similar manner secured tothe end of a rack-bar P. Theteeth of said rack-bar P engage with a beveled projection Q on the innersurface of the standard, and the parts are held in engagement by meansof a plate-spring R, bearing upon the upper surface of the rack-bar. Thefoot-rest C is supported upon the perforated bar or plate O.

What I therefore claim as new, and desire to secure by Letters Patent,is-

The combination with a desk or chair having vertical slide-bars providedwith a plu= rality of alined slots, of a sectional foot-rest having thesections thereof adapted at their outer ends to engage said slide-barsupon which the foot-rest is movable, and at their inner ends having asliding connection, and spring-impelled dogs carried by the foot-restand adapted to engage the slots of the slidebars, substantially asdescribed.

THOMAS B. CRIDDLE.

Vitnesses:

J. M. LANCASTER, E. P. I-IAwKINs.

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